• The term Biological Diversity was first coined by wildlife scientist and conservationist Raymond F. Dasmann in 1968.
  • This term became widespread in use during 1980s.
  • Biodiversity refers to the “totality of genes, species and ecosystems of a region”.
  • There are three levels of biodiversity :
    1. Species diversity,
    2. Ecosystem diversity and
    3. Genetic diversity.
  • Biodiversity is unequally distributed on Earth and it varies across regions on the basis of climatic and geographical factors.
  • On earth, highest biodiversity is found in tropics.
  • In comparison to Oceans, terrestrial biodiversity is much greater.
  • It is estimated that there are 8.7 million species on earth of which 2.1 million live in Oceans while rest are terrestrial.
  • The terrestrial biodiversity is greater at equator in comparison to poles.
  • Around 90% of world’s biodiversity is found in tropical rainforests which occupy less than 10 percent of Earth’s surface.
  • The marine biodiversity is highest along the coasts in the Western Pacific which is known for highest sea temperature.
  • Around 70% of World species are found in 12 countries viz.  Australia, Brazil, China, Columbia, Costa Rica, Congo, Ecuador, India, Indonesia, Madagascar, Mexico and Peru.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top